Home / 20,043.48-27,647.10-13,759.32

Finding the Fourth Proportional to 20,043.48, 27,647.10 and 13,759.32

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Solution

The fourth proportional to 20,043.48, 27,647.10 and 13,759.32 is: 18,979.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,043.48 : 27,647.10 = 13,759.32 : x
  2. Step 2: Convert to fraction form
    20,043.48/27,647.10 = 13,759.32/x
  3. Step 3: Cross multiply
    20,043.48x = 27,647.10 × 13,759.32
  4. Step 4: Simplify right side
    20,043.48x = 380,405,295.97
  5. Step 5: Solve for x
    x = 380,405,295.97/20,043.48
  6. Step 6: Final answer
    x = 18,979.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.